I have read about formatting and still unclear. A search did not pull up any results - though I know they're out there. I want to buy an external HD (not sure if Portable or Desktop kind is better). I have a desktop PC and an Apple iBook and soon to be MBP. I would like to take files from both the iBook and the PC and be able to see them on the new MBP - but I realize there is some format issues? The MBP will be my primary computer. Is there a way to just use the external drive like you can a flash drive in the sense that I can plug the flash drive into any computer and still read the files. Sorry for this post as I realize it's most likely been posted before. - is there a better search and the forums search?